­DALLAS — Warning: Organizers of “Welcome to the Movies,” a haunted house at 877 Main St., Dallas, ask all who enter to sign a waiver.

That’s how scary it can be.

“A lot of people are in here — it’s mainly people, not so much props,” said Mellissa Hoover, organizer and scarer. “There are props to set the scene, but I have a lot of volunteers. There’s 30 scarers in here. It’s pretty packed.”

Welcome to the Movies

What: Dallas Haunted House.

Where: 877 Main St., Dallas.

When: Friday through Nov. 3, at 6 to 8 p.m.

Admission: $10 donation requested for adults; $5 for youths aged 17 and younger. Bring in this story for $1 off entry.

Of note: On Halloween night, the cast at “Welcome to the Movies”haunted house will cater to children with a trick-or-treat themed evening — less scary, more candy.

Each “scarer” is ready to jump out when visitors least expect it — even if it’s their second time through.

They have a code word parents can use with the actors let them know to tone it down for little ones, if needed.

If visitors are too afraid to turn the first corner, they’ll get a refund of their donation-admission.

“We’ve had four teenagers who turned around and came back. They were too scared,”Hoover said.

“If they turn the corner — and the corner’s only 10 feet from here — once they turn the corner, it’s done.”

No photography is allowed, because it ruins the experience for others, Hoover said.

“Being as it changes so much, I don’t want people to expect something in there and it’s not going to be,” she said.

Hoover and her cast of creatures take amusement in return visitors who try to narrate the action. They recalled one woman who attempted to tell her friend what to expect around the corner.

“A few of us left our places and took the shortcuts through to make sure she wouldn’t know what was going to be there,” said Melody Sims, Hoover’s daughter.

Others are eager to see what’s different.

“We have three or four boys who show up to see what’s changed,” Hoover said.

The haunted house was created in the 3,000-square-foot building on Main Street. People walk in the front door, through a maze of frights for all the senses, and out the back.

Admission is $10 for adults and $5 for those 17 and younger. Some of that covers the cost of leasing the space, but most of it will go toward helping those — including Hoover — with a rare autoimmune disease, Hidradenitis Suppurativa.

“There’s no cure for what I have,” Hoover said. “We’re trying to raise money for that to help find a cure. I’m going to donate it to the actual clinic that does all the research down in Utah.”

Hoover and her crew have experience in horror makeup and haunted experiences.

Hoover worked with Haunted Mansions of Albion for a while.

“And I’ve always done makeup with my kids,” she said. “I’ve always done a haunted front yard, and my kids get a kick out of it.”